Choose paper, rock, or scissors. The AI will also choose but at random. If you choose Rock you can only win if the AI chooses Scissors. If you choose Paper, you can only win if the AI chooses Rock. If you choose Scissors you can only win if the AI chooses Paper. If you choose the same thing the game is drawn. Play as many matches as you like. You can change the player or AI player by left clicking or right clicking their name, note this will not change the difficulty.